Profile
Software Engineer · Jan 2025 - Present
I build real-time, scalable systems with Node.js, Express, TypeScript, Angular, React, MongoDB, MySQL, and PostgreSQL. I focus on REST APIs, WebSocket features, POS integrations, and production-grade performance.
I’m Pranav Yamjal, B.Sc CS graduate from Pune, India. I enjoy building clean, efficient backends and practical real-world applications.
“Writing code is easy — building useful solutions is the real skill.”
Skills & Tech Stack
My Professional Journey
OneGreenDiary Software Pvt Ltd
Jan 2025 - Present | PCMC, Maharashtra
Designed and implemented a real-time Kitchen Order Ticket (KOT) generation system by upgrading the Captain App from long polling to WebSocket technology, decreasing printing status latency from 10 seconds to instantaneous updates, resulting in improved kitchen workflow efficiency for over 200 restaurant locations.
Collaborated on a billable enterprise project utilizing Next.js and React, processing over 15,000 complex calculation inputs monthly to generate dynamic PDF reports, enhancing reporting accuracy and reducing manual processing time by 40% for a global membrane water treatment leader.
Led backend development efforts within a cross-functional team building an integrated E-Commerce Ecosystem comprising Customer, Delivery, and Admin applications; optimized Node.js server performance to support more than 50,000 concurrent users per day while maintaining sub-200ms response times across all modules.
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Multi-module commerce platform (Customer, Delivery, Admin) handling 50k+ daily users, optimized for sub-200ms APIs, fast checkout, and reliable order routing.
Built and hardened POS backends with reliable ESC/POS printing, receipt templating, store/device management, and observability for nationwide rollouts.
Real-time KOT pipeline with WebSockets replacing long polling; achieved instantaneous ticket printing and 50% faster order throughput across 200+ locations.
Integrated PhonePe, Razorpay, Zomato, Swiggy, and HubSpot APIs with secure webhooks, retries, and reconciliation flows for payment and order lifecycles.
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